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Computation of practical flow problems with release of latent heat

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  • Yamamoto, Satoru

Abstract

Practical flow problems with condensation due to phase change from water vapor to water liquid are numerically investigated. Fundamental equations solved in this study consist of conservation laws of mixed gas, water vapor, water liquid, and the number density of water droplets, coupled with the momentum equations and the energy equation. The classical condensation theory is employed for modeling homogeneous nucleation and nonequilibrium condensation. Heterogeneous nucleation is approximately modeled by assuming a constant radius and a constant number density of droplets. These equations are solved by a high-order high-resolution finite-difference method. As external flows, condensate transonic flows around NACA0012 airfoil in atmospheric flow conditions are calculated, and as internal flows, steady and unsteady transonic wet-steam flows through a steam turbine cascade channel are also calculated.

Suggested Citation

  • Yamamoto, Satoru, 2005. "Computation of practical flow problems with release of latent heat," Energy, Elsevier, vol. 30(2), pages 197-208.
    • Handle: RePEc:eee:energy:v:30:y:2005:i:2:p:197-208
    DOI: 10.1016/j.energy.2004.04.041
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    Cited by:

    1. Piotr Wiśniewski & Guojie Zhang & Sławomir Dykas, 2022. "Numerical Investigation of the Influence of Air Contaminants on the Interfacial Heat Transfer in Transonic Flow in a Compressor Rotor," Energies, MDPI, vol. 15(12), pages 1-21, June.
    2. Yamamoto, Satoru & Uemura, Akihiro & Miyazawa, Hironori & Furusawa, Takashi & Yonezawa, Koichi & Umezawa, Shuichi & Ohmori, Shuichi & Suzuki, Takeshi, 2020. "A numerical and analytical coupling method for predicting the performance of intermediate-pressure steam turbines in operation," Energy, Elsevier, vol. 198(C).
    3. Sima Shabani & Mirosław Majkut & Sławomir Dykas & Krystian Smołka & Esmail Lakzian & Guojie Zhang, 2023. "Validation of the CFD Tools against In-House Experiments for Predicting Condensing Steam Flows in Nozzles," Energies, MDPI, vol. 16(12), pages 1-20, June.

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